September weather forecastJonesboro, IN
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Jonesboro, Indiana, with an average temperature varying between 56.5°F (13.6°C) and 74.3°F (23.5°C).Temperature
September brings a marginal elevation to a still moderately hot 74.3°F (23.5°C) from August's 79.3°F (26.3°C) in Jonesboro's average high-temperatures. Throughout September, the temperature in Jonesboro tends to fall to a consistent average low of 56.5°F (13.6°C).Humidity
The average relative humidity in September in Jonesboro, Indiana, is 79%.Rainfall
In Jonesboro, in September, during 10.2 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. Throughout the year, there are 123.4 rainfall days, and 12.64" (321mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Jonesboro.Daylight
The average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 7:10 am and sunset at 8:14 pm. On the last day of September, sunrise is at 7:38 am and sunset at 7:25 pm EDT.
Sunshine
In September, the average sunshine in Jonesboro is 8.1h.UV index
In Jonesboro, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: In September, the UV index of 4 transforms into the following advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Jonesboro, IN
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Jonesboro, IN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Jonesboro, IN
- Average wind speed in September: 6.9mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in September
Jonesboro, IN
- Average humidity in September: 79%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Jonesboro, IN
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is May (1.69").
The driest month (with the least rainfall) is February (0.63").
Average rainfall days in September
Jonesboro, IN
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Jonesboro, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Jonesboro, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Jonesboro, IN
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 6min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Jonesboro, IN
- Average sunshine days in September: 18 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in September
Jonesboro, IN
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Jonesboro, IN
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are June, July and August (Cloud cover 34).
Average visibility in September
Jonesboro, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
